The quality of the design of the process layout drawing of the coating equipment

The design of the process layout drawing of the coating equipment is crucial to the use of the coating production line. If the process layout of the coating equipment is improper, even if the individual equipment is made well, the entire coating production line is not easy to use.

Common typical errors in the process layout of coating equipment are listed below:

1. The output does not reach the design program: some designs do not consider the hanging method of coating equipment, do not consider the hanging spacing, do not consider uphill and downhill, horizontal turning interference, and the production time does not consider the scrap rate, coating equipment utilization rate, and product peak production capacity. As a result, the production volume did not meet the design guidelines.

2. The process time of coating equipment is not enough: some designs achieve the purpose by reducing the process time in order to reduce the cost. Common examples: the transition period before the coating production line is not enough, resulting in liquid stringing; The heating time is not considered during curing, resulting in poor curing; The painting leveling time is not enough, resulting in insufficient leveling of the paint film; After curing, the cooling is not enough, and the workpiece overheats when painting (or the next piece).

3. Improper design of conveying equipment: There are many ways to transport workpieces, improper design, and adverse consequences will occur to production capacity, process operation, and upper and lower parts. Common is suspension chain conveying, and its load capacity and traction capacity require calculation and interference drawing. The speed of the chain also has corresponding requirements for the matching of equipment. Coating equipment also requires the stability and synchronization of the chain.

4. Improper selection of coating equipment: Due to different product requirements, equipment selection is also different, and various coating equipment has its advantages and disadvantages. The design cannot be explained to the user, and it is found to be very unsatisfactory after manufacturing. For example, the air curtain for powder spraying and drying tunnels is insulated, and the workpieces with cleanliness requirements are not installed with purification equipment. This type of error is a common mistake in the process layout of painting equipment.